In a recently published research article, Pablo Artigas, Ph.D., from the Center for Membrane Protein Research at the Texas Tech University Health Sciences Center (TTUHSC) School of Medicine's Department of Cell Physiology and Molecular Biophysics, and a team of collaborators applied functional and structural analyses to investigate what structural features of proton/potassium (H+/K+) pumps and sodium/potassium (Na+/K+) pumps lead them to regulate the passage of salts across membrane barriers.